Question

List the pulmonary structures that comprise the Respiratory Zone.

a) Trachea and bronchi
b) Alveoli and respiratory bronchioles
c) Pharynx and larynx
d) Nasal passages and mouth

Answer 1

The Respiratory Zone includes the alveoli and respiratory bronchioles, which are directly involved in the gas exchange of oxygen and carbon dioxide.

Step-by-step explanation:

The Respiratory Zone is a critical component of the respiratory system involved in gas exchange. This zone includes structures such as alveoli and respiratory bronchioles, which facilitate the direct exchange of oxygen and carbon dioxide between the lungs and the blood. The Respiratory Zone begins where terminal bronchioles join a respiratory bronchiole, leading to an alveolar duct, and opening into a cluster of alveoli.